Tool for compressing piston rings



c. J. 'MATHISOVN TOOL FOR CGMPRESSING PISTON RINGS Filed July 22. 1922 ilwpflfv Feb. 12, 1924;

WITNESSES;

Patented Feb. re, 1924.

srarrs CABLE. IEATHISON, 0F BELMONT, MONTANA.

TOOL FOR COIvEPRESSING PISTON RINGS.

Application filed July 22, 1922. Serial No. 576,832.

To all whom it may concern:

Be it known that I, CARL J. MATHIsoN, a citizen of the United States, residing at Belmont, in the county of Golden Valley and State of Montana, have invented new and useful Improvements in Tools for Compressing Piston Rings, of which the followis a specification. I

This invention aims to provide a tool for compressing piston rings, to facilitate the association of a piston within the cylinder of a motor, the tool being adjustable to accommodate itself to pistons and rings of different diameters, and constructed to be easily manipulated for the purpose intended.

With the above and other objects in view, the invention further includes the following novel features and details of construction, to be hereinafter more fullydescribed, illustrated in the accompanying drawings and pointed out in the appended claims.

In the drawings Figure 1 is a plan view of the tool showing the manner of using the same.

Figure 2 is a view partly in elevation and partly in section.

Figure 3 is a longitudinal sectional View taken on the line 3-3 of Figure 2.

Figure 1 is a fragmentary view of the flexible strip.

lhe tool forming the subject matter of the present invention embodies a two piece handle, the respective pieces being indicated at and 11 and pivoted together as at 12. The piece 10 is preferably of uniform width throughout its length and is provided at one end with an opening 18, by means of which said piece is associated with a flexible strip 1 1. In the use of the tool, the piece 10 is stationary, the piece 11 being movable and designed for association with the flexible strip 14 to draw the latter tight about the piston ring after it has been associated with the piston, and to limit the movement of the piece 11 under these circumstances, the piece 10 is provided with a stop 15 adjacent the outer end thereof. Secured to the flexible strip is a plate 17 which is formed to provide an intermediate loop or bulged portion 18 and the latter is adapted to be positioned within the opening 13 of the piece 10 of the handle. It will be noted that the plate 17 is secured to the strip an appreciable distance from one end thereof and that the said flexible strip is provided with a longitudinal series of openings 19 adapted to singly receive a curved upwardly extending stud 20 which projects from the curved extremity 21 of the piece 11 of the handle.

In the use of the tool, the piston ring 22 is arranged within its groove in the piston 23 and the flexible strip arranged to embrace the ring in the manner illustrated in Figure 1. The piece 11 of the handle is then moved to the position illustrated by dotted and full lines in Figure 1 and the stud arranged in one of the openings of said strip. When the piece 11 of the handle is moved toward the stop 15 of the piece 10, the flexible strip which now is in the form of a band, is contracted to efiectively compress the piston ring about the piston and hold the ring in this condition while the piston is being in serted within its cylinder. Manifestly the tool can be 'used in conjunction with pistons and rings of different diameters and the tool can be very easily and conveniently handled for the purpose intended. Should it be desired at anytime to obtain a new purchase upon the band after initially compressing the ring, it is only necessary to hold the free end of this band apart, while the piece 11 of the handle is readjusted.

The invention is susceptible of various changes in its form, proportions and minor details of construction and the right is here in reserved to make such changes as properly fall within the scope of the appended claims.

Having described the invention what is claimed is 1. A piston ring compressor comprising a two-part handle, the respective parts of said handle being pivotally connected together, a flexible strip detachably secured to the adjacent end of one part of the handle and adapted to be extended about the ring, said striphaving a longitudinal series of openings, the adjacent extremity of the other part of the handle being curved, and a curved upwardly extending stud projecting from the curved extremity and adapted to be received by said openings to compress said ring when said strip is tightened about the latter as described.

2. A piston ring compressor comprising a two-parthandle, said parts being pivotally connected together, one part of the handle having an opening at the end thereof, a

flexible strip, a loop supported by the strip and adapted to be received by said opening, said strip having a longitudinal series 01" openings and adapted to be arranged to embrace said ring, a curved extremity formed on the other part of the handle, a stud projecting from the curved extremity and adapted to be received by said openings to compress said ring as said strip is tightened about the latter, and a stop carried by one 10 part of the handle to limit the active movement of the other part of the handle.

In testimony WhereofI affix my signature.

CARL J. MATHIS ON. 

